code: def test_normalized_confusion_matrix():
      plot.confusion_matrix(
          y_test, y_pred, target_names, normalize=True
      )
  
imports: from functools import partial
  import sys
  from unittest.mock import Mock
  import numpy
  from matplotlib.testing.decorators import image_comparison
  from sklearn_evaluation import plot
label_desc: Use image node_id 2 for calling a global function with example usage: test_normalized_confusion_matrix() without return types